Apparatus

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sensors Mode-S transponder

A3C514

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N342DN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A3C514
Octal
50742424
Decimal
10,732,820
Country
US
Tail
N342DN
Type
A321
No current signal · last broadcast 1h ago
Flights observed
529
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A3C514.

Country allocation

The ICAO 24-bit address A3C514 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
DAL2401 - 9 2026-07-14
DAL1512 Delta Air Lines 8 2026-07-02
DAL1332 Delta Air Lines 8 2026-06-27
DAL2209 Delta Air Lines 7 2026-04-18
DAL1266 Delta Air Lines 7 2026-04-21
DAL1169 - 7 2026-07-04
DAL2397 Delta Air Lines 6 2026-05-18
DAL1594 Delta Air Lines 6 2026-05-22
DAL1497 Delta Air Lines 6 2026-07-08
DAL1341 Delta Air Lines 6 2026-06-28
DAL1271 - 6 2026-07-04
DAL959 Delta Air Lines 5 2026-05-24
DAL399 - 5 2026-06-25
DAL2999 Delta Air Lines 5 2026-06-17
DAL2890 Delta Air Lines 5 2026-05-22
DAL2322 Delta Air Lines 5 2026-06-11
DAL2309 Delta Air Lines 5 2026-04-18
DAL1572 Delta Air Lines 5 2026-06-30
DAL1460 Delta Air Lines 5 2026-06-06
DAL1311 - 5 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2401 - Jul 14, 17:55 UTCJul 14, 19:00 UTC1h 5m
2026-07-14 DAL2401 ATL → EWR Jul 14, 14:35 UTCJul 14, 16:20 UTC1h 45m
2026-07-14 DAL1152 - Jul 14, 10:35 UTCJul 14, 12:15 UTC1h 40m
2026-07-14 DAL2065 ATL → PHL Jul 14, 00:30 UTCJul 14, 02:05 UTC1h 35m
2026-07-13 DAL1467 - Jul 13, 20:50 UTCJul 13, 22:25 UTC1h 35m
2026-07-13 DAL1467 DTW → ATL Jul 13, 20:47 UTCJul 13, 22:21 UTC1h 34m
2026-07-13 DAL2787 DEN → DTW Jul 13, 16:40 UTCJul 13, 19:05 UTC2h 25m
2026-07-13 DAL1317 SLC → DEN Jul 13, 13:55 UTCJul 13, 15:00 UTC1h 5m
2026-07-13 DAL1317 SLC → DEN Jul 13, 13:56 UTCJul 13, 14:51 UTC55m
2026-07-13 DAL1360 - Jul 13, 11:30 UTCJul 13, 12:30 UTC1h 0m
2026-07-13 DAL1360 BIL → SLC Jul 13, 11:28 UTCJul 13, 12:26 UTC58m
2026-07-13 DAL1340 SLC → BIL Jul 13, 04:14 UTCJul 13, 05:05 UTC51m
2026-07-13 DAL1340 - Jul 13, 04:15 UTCJul 13, 05:10 UTC55m
2026-07-13 DAL2663 DEN → SLC Jul 13, 01:25 UTCJul 13, 02:25 UTC1h 0m
2026-07-12 DAL519 ATL → DEN Jul 12, 21:00 UTCJul 12, 23:40 UTC2h 40m
2026-07-12 DAL1046 MSP → ATL Jul 12, 16:57 UTCJul 12, 19:26 UTC2h 29m
2026-07-12 DAL1046 MSP → ATL Jul 12, 17:01 UTCJul 12, 19:35 UTC2h 35m
2026-07-11 DAL1730 - Jul 11, 18:05 UTCJul 11, 21:00 UTC2h 55m
2026-07-11 DAL1730 MSP → MCO Jul 11, 12:10 UTCJul 11, 15:00 UTC2h 50m
2026-07-10 DAL2366 YVR → MSP Jul 10, 22:02 UTCJul 11, 00:55 UTC2h 53m
2026-07-10 DAL2366 YVR → MSP Jul 10, 22:05 UTCJul 11, 01:00 UTC2h 55m
2026-07-10 DAL1241 MSP → YVR Jul 10, 16:55 UTCJul 10, 20:05 UTC3h 10m
2026-07-09 DAL1127 BOS → MSP Jul 9, 22:15 UTCJul 10, 01:05 UTC2h 50m
2026-07-09 DAL726 ATL → BNH Jul 9, 18:15 UTCJul 9, 20:35 UTC2h 20m
2026-07-09 DAL1585 - Jul 9, 15:10 UTCJul 9, 16:45 UTC1h 35m
2026-07-09 DAL1585 - Jul 9, 11:50 UTCJul 9, 13:30 UTC1h 40m
2026-07-08 DAL973 BNH → ATL Jul 8, 23:15 UTCJul 9, 01:25 UTC2h 10m
2026-07-08 DAL2595 ATL → BOS Jul 8, 19:30 UTCJul 8, 21:30 UTC2h 0m
2026-07-08 DAL2595 ATL → BOS Jul 8, 19:28 UTCJul 8, 21:38 UTC2h 10m
2026-07-08 DAL2270 - Jul 8, 16:10 UTCJul 8, 17:50 UTC1h 40m
2026-07-08 DAL2270 ATL → PHL Jul 8, 13:05 UTCJul 8, 14:35 UTC1h 30m
2026-07-08 DAL1494 MSP → FAR Jul 8, 10:20 UTCJul 8, 11:20 UTC1h 0m
2026-07-08 DAL1494 MSP → FAR Jul 8, 10:17 UTCJul 8, 11:17 UTC1h 0m
2026-07-08 DAL1562 ATL → MCO Jul 8, 03:40 UTCJul 8, 04:40 UTC1h 0m
2026-07-08 DAL1497 ATL → MCO Jul 8, 01:05 UTCJul 8, 02:00 UTC55m
2026-07-07 DAL1497 ATL → MCO Jul 7, 22:10 UTCJul 7, 23:15 UTC1h 5m
2026-07-07 DAL1190 - Jul 7, 18:55 UTCJul 7, 20:30 UTC1h 35m
2026-07-07 DAL1190 PBI → ATL Jul 7, 18:52 UTCJul 7, 20:22 UTC1h 30m
2026-07-07 DAL1190 ATL → PBI Jul 7, 15:30 UTCJul 7, 17:05 UTC1h 35m
2026-07-07 DAL1395 RSW → ATL Jul 7, 12:15 UTCJul 7, 13:35 UTC1h 20m
2026-07-07 DAL1736 ATL → RSW Jul 7, 00:25 UTCJul 7, 01:45 UTC1h 20m
2026-07-06 DAL1579 - Jul 6, 21:05 UTCJul 6, 22:50 UTC1h 45m
2026-07-06 DAL1579 ATL → MIA Jul 6, 17:15 UTCJul 6, 19:05 UTC1h 50m
2026-07-06 DAL456 SFO → ATL Jul 6, 13:30 UTCJul 6, 15:40 UTC2h 10m
2026-07-06 DAL456 SFO → ATL Jul 6, 13:28 UTCJul 6, 15:36 UTC2h 8m
2026-07-06 DAL821 ATL → BOS Jul 6, 00:15 UTCJul 6, 02:15 UTC2h 0m
2026-07-05 DAL1755 PUJ → ATL Jul 5, 17:44 UTCJul 5, 20:55 UTC3h 11m
2026-07-05 DAL1760 - Jul 5, 12:20 UTCJul 5, 18:20 UTC6h 0m
2026-07-05 DAL1323 MIA → ATL Jul 5, 00:20 UTCJul 5, 01:45 UTC1h 25m
2026-07-04 DAL1323 ATL → MIA Jul 4, 20:29 UTCJul 4, 22:02 UTC1h 33m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N342DN page for operator, model, and routing details .

Mode-S A3C514 frequently asked

What is Mode-S code A3C514?
A3C514 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N342DN.
Where is Mode-S A3C514 registered?
Mode-S code A3C514 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A3C514 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C514, octal 50742424, decimal 10,732,820.
What flights does A3C514 operate?
Mode-S A3C514 has broadcast 20 distinct callsigns, including DAL2401, DAL1512, DAL1332, DAL2209, DAL1266.